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CFD-based Taguchi optimization of impeller geometry to improve centrifugal fan efficiency

Teknomekanik · Vol. 9 No. 2 (2026) · hlm. 203–217

DOI
10.24036/teknomekanik.v9i2.53772
ISSN
2621-8720, 2621-9980
Terbit
2026-06-01
Penerbit
Universitas Negeri Padang
Bahasa
eng
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

Centrifugal fans play a significant role in industrial ventilation systems. Their performance is affected by aerodynamic losses such as flow separation and non-uniform pressure distribution, thereby reducing the overall efficiency. Since design parameters influence the fan efficiency, design parameter optimization becomes one option for addressing this issue. Some optimization methods involve high computational cost and complex procedures. This raises the necessity for a more efficient and systematic optimization procedure. The aim of this study is to propose an integrated approach which involves Computational Fluid Dynamics (CFD) and the Taguchi method to improve the performance of a centrifugal fan. CFD is used to evaluate the performance of different design combinations, while the Taguchi method is used to optimize design parameters. The investigated design parameters are the inlet blade angle (β1), the outlet blade angle (β2), the number of blades (n), and the flow rate (Q). Each of the design factors has three levels, therefore, an L9 orthogonal array was utilized as the design of experiments. Analysis of variance (ANOVA) is used to determine their relative significance. The results show that the optimal combination of design parameters increase the efficiency from 39.79% (the reference) to 63.26%. The CFD simulations for the optimal combination exhibit the improved flow behaviour, which explains the enhanced efficiency. The results show the feasibility of the proposed method for improving the performance of the centrifugal fan.

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  • Universitas Negeri Padang
  • Andalas University
  • National Kaohsiung University of Science and Technology
  • De Montfort University
  • State University of Medan
  • Universitas Halu Oleo
  • Politeknik Negeri Padang
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Rekan penulisOrganisasiArtikel bersama
Waskito WaskitoUniversitas Negeri Padang4
Batu Mahadi SiregarState University of Medan4
Anna Niska FauzaUniversitas Negeri Padang4
Dori YuvendaUniversitas Negeri Padang3
Remon LapisaUniversitas Negeri Padang3
Randi Purnama PutraUniversitas Negeri Padang2
Wanda AfnisonUniversitas Negeri Padang2
Milana MilanaUniversitas Negeri Padang2
Primawati PrimawatiUniversitas Negeri Padang2
Yolli FernandaUniversitas Negeri Padang2
Wagino WaginoUniversitas Negeri Padang2
Ambiyar AmbiyarUniversitas Negeri Padang2
Refdinal RefdinalUniversitas Negeri Padang2
Ahmad ArifUniversitas Halu Oleo1
Dori YuvendaUniversitas Negeri Padang1
M. Yasep SetiawanUniversitas Negeri Padang1
Dodi DeviantoAndalas University1
Ferra YanuarAndalas University1
Mulyanti MulyantiUniversitas Negeri Padang1
Fazrol RoziPoliteknik Negeri Padang1
Meisuri HandayaniUniversitas Negeri Padang1
Hasanuddin HasanuddinState University of Makassar1
M SaddikinUniversitas Negeri Padang1
Kyaw Zay YaThanlyin Technological University1
Alan WariUniversitas Negeri Padang1
K ArwizetUniversitas Negeri Padang1
Andika PutraUniversitas Negeri Padang1
Andril ArafatUniversitas Negeri Padang1
Julio Lukmanul ArdiUniversitas Negeri Padang1
Sri Rizki Putri PrimandaniUniversitas Negeri Padang1
Bulkia RahimUniversitas Negeri Padang1
Eko IndrawanUniversitas Negeri Padang1

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Sumber metadata: OAI-PMH (metadata jurnal) http://teknomekanik.ppj.unp.ac.id/index.php/teknomekanik/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">CFD-based Taguchi optimization of impeller geometry to improve centrifugal fan efficiency</dc:title>
	<dc:creator xml:lang="en">Sari, Delima Yanti</dc:creator>
	<dc:creator xml:lang="en">Santoso, Bagas</dc:creator>
	<dc:creator xml:lang="en">Nurdin, Hendri</dc:creator>
	<dc:creator xml:lang="en">Hastuti, Hastuti</dc:creator>
	<dc:creator xml:lang="en">Rifelino, Rifelino</dc:creator>
	<dc:creator xml:lang="en">Qalbina, Fitrah</dc:creator>
	<dc:creator xml:lang="en">Wu, Tsung-Liang</dc:creator>
	<dc:creator xml:lang="en">Harmanto, Dani</dc:creator>
	<dc:subject xml:lang="en">centrifugal fan</dc:subject>
	<dc:subject xml:lang="en">design configurations</dc:subject>
	<dc:subject xml:lang="en">HVAC systems</dc:subject>
	<dc:subject xml:lang="en">impeller geometry optimization</dc:subject>
	<dc:description xml:lang="en">Centrifugal fans play a significant role in industrial ventilation systems. Their performance is affected by aerodynamic losses such as flow separation and non-uniform pressure distribution, thereby reducing the overall efficiency. Since design parameters influence the fan efficiency, design parameter optimization becomes one option for addressing this issue. Some optimization methods involve high computational cost and complex procedures. This raises the necessity for a more efficient and systematic optimization procedure. The aim of this study is to propose an integrated approach which involves Computational Fluid Dynamics (CFD) and the Taguchi method to improve the performance of a centrifugal fan. CFD is used to evaluate the performance of different design combinations, while the Taguchi method is used to optimize design parameters. The investigated design parameters are the inlet blade angle (β1), the outlet blade angle (β2), the number of blades (n), and the flow rate (Q). Each of the design factors has three levels, therefore, an L9 orthogonal array was utilized as the design of experiments. Analysis of variance (ANOVA) is used to determine their relative significance. The results show that the optimal combination of design parameters increase the efficiency from 39.79% (the reference) to 63.26%. The CFD simulations for the optimal combination exhibit the improved flow behaviour, which explains the enhanced efficiency. The results show the feasibility of the proposed method for improving the performance of the centrifugal fan.</dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Padang</dc:publisher>
	<dc:date>2026-06-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>http://teknomekanik.ppj.unp.ac.id/index.php/teknomekanik/article/view/537</dc:identifier>
	<dc:identifier>10.24036/teknomekanik.v9i2.53772</dc:identifier>
	<dc:source xml:lang="en">Teknomekanik; Vol. 9 No. 2 (2026): Regular Issue; 203-217</dc:source>
	<dc:source>2621-8720</dc:source>
	<dc:source>2621-9980</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>http://teknomekanik.ppj.unp.ac.id/index.php/teknomekanik/article/view/537/122</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 Delima Yanti Sari, Bagas Santoso, Hendri Nurdin, Hastuti Hastuti, Rifelino Rifelino, Fitrah Qalbina, Tsung-Liang Wu, Dani Harmanto (Author)</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by/4.0</dc:rights>
</oai_dc:dc>